1#include "RenderScript.h"
2#include <sys/time.h>
3
4#include "ScriptC_latency.h"
5
6using namespace android;
7using namespace RSC;
8
9int main(int argc, char** argv)
10{
11    int iters = 100;
12    int numElems = 1000;
13    bool forceCpu = false;
14    bool synchronous = false;
15
16    if (argc >= 2) {
17        iters = atoi(argv[1]);
18        if (iters <= 0) {
19            printf("iters must be positive\n");
20            return 1;
21        }
22    }
23
24    printf("iters = %d\n", iters);
25
26    if (argc >= 3) {
27        numElems = atoi(argv[2]);
28        if (numElems <= 0) {
29            printf("numElems must be positive\n");
30            return 1;
31        }
32    }
33
34    if (argc >= 4) {
35        int temp = atoi(argv[3]);
36        if (temp != 0)
37            forceCpu = true;
38    }
39
40    if (argc >= 5) {
41        int temp = atoi(argv[4]);
42        if (temp != 0)
43            synchronous = true;
44    }
45
46    if (forceCpu)
47        printf("forcing CPU\n");
48
49    if (synchronous)
50        printf("forcing synchronous\n");
51
52    printf("numElems = %d\n", numElems);
53
54    sp<RS> rs = new RS();
55
56    uint32_t flags = 0;
57    if (forceCpu) flags |= RS_INIT_LOW_LATENCY;
58    if (synchronous) flags |= RS_INIT_SYNCHRONOUS;
59
60    bool r = rs->init("/system/bin", flags);
61
62    sp<const Element> e = Element::U32(rs);
63
64    Type::Builder tb(rs, e);
65    tb.setX(numElems);
66    sp<const Type> t = tb.create();
67
68    uint32_t *buf = new uint32_t[numElems];
69
70    sp<Allocation> ain = Allocation::createTyped(rs, t);
71    sp<Allocation> aout = Allocation::createTyped(rs, t);
72
73    sp<ScriptC_latency> sc = new ScriptC_latency(rs);
74
75    struct timeval start, stop;
76
77    gettimeofday(&start, NULL);
78
79    for (int i = 0; i < iters; i++) {
80        sc->forEach_root(ain, aout);
81    }
82
83    rs->finish();
84
85    gettimeofday(&stop, NULL);
86
87    long long elapsed = (stop.tv_sec * 1000000) - (start.tv_sec * 1000000) + (stop.tv_usec - start.tv_usec);
88    printf("elapsed time : %lld microseconds\n", elapsed);
89    printf("time per iter: %f microseconds\n", (double)elapsed / iters);
90
91    gettimeofday(&start, NULL);
92
93    for (int i = 0; i < iters; i++) {
94        ain->copy1DFrom(buf);
95        sc->forEach_root(ain, aout);
96        aout->copy1DTo(buf);
97    }
98
99    rs->finish();
100
101    gettimeofday(&stop, NULL);
102    elapsed = (stop.tv_sec * 1000000) - (start.tv_sec * 1000000) + (stop.tv_usec - start.tv_usec);
103    printf("elapsed time with copy : %lld microseconds\n", elapsed);
104    printf("time per iter with copy: %f microseconds\n", (double)elapsed / iters);
105
106    sc.clear();
107    t.clear();
108    e.clear();
109    ain.clear();
110    aout.clear();
111}
112